Form 4 for SLDB Solid Biosciences Inc.
Accepted 2026-01-07 00:00:00 ET · period of report 2026-01-02 · accession 0001193125-26-006287 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-01-07 | 2026-01-06 | SLDB | SMITH IAN F | Dir | M - OptEx | — | +4,573 | 131.3K | +4% | — |
| DM | 2026-01-07 | 2026-01-02 | SLDB | SMITH IAN F | Dir | A - Grant | $0.00 | +31.8K | 18.0K | New | $0 |
| D | 2026-01-07 | 2026-01-06 | SLDB | SMITH IAN F | Dir | M - OptEx | $0.00 | -4,573 | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-01-06 | M | A | 4,573 | — | 131,264 | D | — | — | (F1) Restricted stock units convert to common stock on a one-for-one basis. |
| 2 | Derivative | Restricted Stock Units | 2026-01-02 | A | A | 13,761 | $0.00 | 13,761 | D | — · — to — | 13,761 Common Stock | (F3) Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock (the "Smith RSUs"). (F2) The Smith RSUs (as defined in footnote 3) and this option (together with the Smith RSUs, the "Smith Equity Awards") were granted on January 2, 2026 ("the Grant Date") and vest in equal quarterly installments with the first installment vesting three months from the Grant Date and the final installment vesting date being the date that is 12 months from the Grant Date; provided that in the event of the early termination of the Fourth Amendment to Executive Chair Agreement between the Issuer and the reporting person (the "Smith Agreement") prior to the expiration of the Term (as defined in the Smith Agreement) and/or a change in control of the Issuer, the Smith Equity Awards shall accelerate in full. |
| 3 | Derivative | Stock Option (Right to Buy) | 2026-01-02 | A | A | 18,012 | $0.00 | 18,012 | D | $5.45 · — to 2036-01-02 | 18,012 Common Stock | (F2) The Smith RSUs (as defined in footnote 3) and this option (together with the Smith RSUs, the "Smith Equity Awards") were granted on January 2, 2026 ("the Grant Date") and vest in equal quarterly installments with the first installment vesting three months from the Grant Date and the final installment vesting date being the date that is 12 months from the Grant Date; provided that in the event of the early termination of the Fourth Amendment to Executive Chair Agreement between the Issuer and the reporting person (the "Smith Agreement") prior to the expiration of the Term (as defined in the Smith Agreement) and/or a change in control of the Issuer, the Smith Equity Awards shall accelerate in full. |
| 4 | Derivative | Restricted Stock Units | 2026-01-06 | M | D | 4,573 | $0.00 | 0 | D | — · — to — | 4,573 Common Stock | (F1) Restricted stock units convert to common stock on a one-for-one basis. (F4) The restricted stock units were granted on January 6, 2025 and vested in equal quarterly installments beginning three months from the date of grant, with the final installment vesting 12 months from the date of grant. |